Let me move this to the Download & Install forum for you, which is the appropriate forum for your question.
The Using the Community forum is for help in using the Adobe Support Community forums, not for help with specific programs. Product questions should be posted in the associated product community.
I believe what you need to do is set your Creative Cloud Desktop App to show older versions.
- Open Creative Cloud Desktop
- Click on your avatar
- Click Preferences > Apps
- Scroll down to the toggle for Show Older Apps and make sure it is slid to the right
- Close preferences, then click the 3 dots to the right of the Open button for you installed program
- Click Other versions. That will show the versions you can install through the Desktop app, which is the current major version and the one immediately prior.
If you need a version older than that, you will have to download it from your Account page.
- Log in to account.adobe.com
- Click Plans in the top menu
- Click Order History
- Find the order for your earlier software version and click on the order number.
- You should be able to download from there. If not, check out the Prodesign Tools website, which I believe has links to earlier versions of Creative Cloud apps.
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